CN104765116B - Optical fiber cable folding and unfolding bus cable device - Google Patents
Optical fiber cable folding and unfolding bus cable device Download PDFInfo
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- CN104765116B CN104765116B CN201510121418.2A CN201510121418A CN104765116B CN 104765116 B CN104765116 B CN 104765116B CN 201510121418 A CN201510121418 A CN 201510121418A CN 104765116 B CN104765116 B CN 104765116B
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- right support
- support seat
- connecting rod
- seat
- cylinder
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The present invention discloses a kind of optical fiber cable folding and unfolding bus cable device, including pedestal, left and right support base, rotating electric machine and traveling motor, and x is sequentially embedded the first x to sliding block, the 2nd x into the respective groove of sliding block to line rail；One, which is located at two x, is installed in the groove of pedestal to the x between line rail to driving mechanism and is located at below left and right support base, x to driving mechanism include x to nut, insertion x to the x of nut to lead screw, x to main bearing seat and x to from bearing block；One cylinder is fixed in left support seat and is located at left support seat outboard end, post rod mechanism one end of cylinder is connected to cylinder, it is another that the ipsilateral outboard end of right support seat is installed on by socket, post rod mechanism includes Y shape mandril and connecting rod, this Y shape mandril one end has a slot, connecting rod one end is embedded in this slot and is flexibly connected by bolt, in the connecting rod other end insertion socket.The present invention can adjust automatically winding displacement commutation position, fully achieve full-automatic winding displacement, be dynamically adapted disk away from the fiber reel operation for realizing plurality of specifications is whole, and it is strong to have subtracted few operational labour.
Description
Technical field
The present invention relates to a kind of optical fiber folding and unfolding field more particularly to a kind of optical fiber cable folding and unfolding bus cable devices.
Background technique
Fiber optic communication has become the prevailing transmission medium of modern communications, can be according to segment length when optical fiber is in being machined into
Difference, segment length's after-combustion and coloring are carried out to optical fiber, then optical fiber could be expressed into optical fiber bundle tubes, eventually by stranding
Optical fiber is become can be used with sheathing.The true qualities optical fiber segment length of finished product is generally 25km or 50km, passes through optical fiber
Coloring rewinding machine can carry out the optical fiber of coloring and after-combustion to required color and segment length to optical fiber.
Due to the fiber reel of different size often being used, even same rule in Optical Fiber Winding winding displacement production and application
The fiber reel of lattice is also influenced by the accuracy of manufacture, and the width and outer diameter of fiber reel are all differentiated；In addition in winding winding displacement mistake
Due to the presence for mechanically and electrically controlling error of equipment itself in journey, through error accumulation after a period of time, so that winding displacement meeting
The phenomenon that less than side or winding displacement superposition, is arranged in appearance.Since winding displacement commutates using mechanical and manual setting, above-mentioned various errors
It will cause the position that operative employee wants the moment to commutate winding displacement to be adjusted, so that the workload of operative employee is especially big, it should be noted that light
Fine winding displacement cannot leave machine, even if still will appear the bad phenomenon of winding displacement in this way, and winding winding displacement speed is low, efficiency is not
It is high.
Summary of the invention
The present invention provides a kind of optical fiber cable folding and unfolding bus cable device, this optical fiber cable can be adjusted automatically with folding and unfolding bus cable device
Entire row line commutation position can solve operate the ceaselessly adjustment to winding displacement commutation position, subtract few operational labour by force,
Full-automatic winding displacement is fully achieved, winding displacement quality is high, is dynamically adapted disk away from the fiber reel for realizing plurality of specifications operates.
In order to achieve the above objectives, the technical solution adopted by the present invention is that: a kind of optical fiber cable folding and unfolding bus cable device, packet
It includes: having reeded pedestal, left and right support base, rotating electric machine and traveling motor, the surface that the pedestal is located at groove two sides is solid
X is to line rail there are two fixed, and left support seat lower surface two sides are respectively and fixedly provided with the first x to sliding block, and right support seat lower surface two sides are solid
Surely there is the 2nd x to sliding block, the x is sequentially embedded the first x to sliding block, the 2nd x into the respective groove of sliding block to line rail；
One, which is located at two x, is installed in the groove of pedestal to the x between line rail to driving mechanism and is located at left and right support base
Lower section, the x to driving mechanism include x to nut, insertion x to the x of nut to lead screw, x to main bearing seat and x to from bearing
Seat, the x pass through x to lead screw both ends respectively and are embedded in x to main bearing seat, x to from axis to base bearing mechanism, x to from Bearning mechanism
Seat is held respectively in through-hole, the x is fixed on left support seat lower surface to nut, and the traveling motor is installed on positioned at x to main shaft
X on the outside of seat is held to lead screw one end；
One cylinder is fixed in left support seat and is located at left support seat outboard end, and post rod mechanism one end of the cylinder connects
Another to be installed on the ipsilateral outboard end of right support seat by socket to cylinder, the post rod mechanism includes Y shape mandril and connection
Bar, this Y shape mandril one end have a slot, and described connecting rod one end is embedded in this slot and is flexibly connected by bolt, described
The connecting rod other end be embedded in socket in, in the connecting rod in X direction on be provided with several location holes；
It is mounted on Bearning mechanism in the left and right support base respectively upper end through-hole, on the inside of this left and right support base
The chuck piece connecting with Bearning mechanism is installed, the rotating electric machine is installed on the outside of the Bearning mechanism of left support seat.
Further improved technology scheme is as follows in above-mentioned technical proposal:
1, in above scheme, the left and right support base is aluminum casting, and the pedestal is ironcasting.
2, in above scheme, shaft coupling is provided between the Bearning mechanism and rotating electric machine of the left support seat.
3, in above scheme, the chuck piece of the left support seat and the opposite surface of the chuck piece of right support seat are fixed with rubber
Rubber mat.
4, in above scheme, the chuck piece medial surface is provided with limited block.
5, in above scheme, a fixed pin is embedded in the positioning hole of socket and connecting rod.
Due to the above technical solutions, the present invention has the following advantages over the prior art:
1, optical fiber cable of the present invention folding and unfolding bus cable device, can adjust automatically winding displacement commutation position, can solve to need to operate
On the ceaselessly adjustment to winding displacement commutation position, it is strong to have subtracted few operational labour, fully achieves full-automatic winding displacement, winding displacement matter
Amount is high；It is installed in the groove of pedestal to the x between line rail to driving mechanism secondly, it is located at two x and is located at left and right support
Seat lower section, greatly reduces the volume of device, reduces equipment installation area occupied, facilitates installing and using for equipment.
2, optical fiber cable of the present invention folding and unfolding bus cable device, cylinder are fixed in left support seat and are located at outside left support seat
Side, post rod mechanism one end of the cylinder is connected to cylinder, another to be installed on the ipsilateral outboard end of right support seat by socket,
The post rod mechanism includes Y shape mandril and connecting rod, this Y shape mandril one end has a slot, and described connecting rod one end is embedded in this
It is flexibly connected in slot and by bolt, in the connecting rod other end insertion socket, not only can satisfy fastly using Y shape mandril
The use of speed installation needs, and there is a certain error in view of workpiece connected to it, thus its there are also certain machinery
Deviation-correcting function.Secondly, in its connecting rod in X direction on be provided with several location holes, connecting rod can move in socket, and one is solid
Rationed marketing is embedded in the positioning hole of socket and connecting rod, is dynamically adapted disk away from the fiber reel for realizing plurality of specifications operates, and avoids
Due between deep bid and shallow bid switching cause due to cylinder stroke problem to clamp power it is insufficient and influence the speed of service of equipment and
Stability.
3, optical fiber cable of the present invention folding and unfolding bus cable device, left and right support base are aluminum casting, and the pedestal is cast iron
2 kinds of material resonance point differences are utilized in part, avoid equipment under high speed rotary motion state because equipment brought by resonating is received
Winding displacement state labile improves the quality of product, reduces the fine probability that breaks.
Detailed description of the invention
Attached drawing 1 is optical fiber cable folding and unfolding bus cable device schematic view of the front view of the present invention；
Attached drawing 2 is optical fiber cable folding and unfolding bus cable device schematic perspective view of the present invention.
In the figures above: 1, pedestal；101, groove；2, left support seat；3, right support seat；4, rotating electric machine；5, it advances electric
Machine；6, x is to line rail；7, the first x is to sliding block；8, the 2nd x is to sliding block；9, x is to driving mechanism；91, x is to nut；92, x is to lead screw；
93, x is to main bearing seat；94, x is to from bearing block；10, x is to base bearing mechanism；11, x is to from Bearning mechanism；12, cylinder；13, it pushes up
Linkage；14, socket；15, Y shape mandril；151, slot；152, bolt；16, connecting rod；161, location hole；17, Bearning mechanism；
18, chuck piece；19, shaft coupling；20, rubber pad；21, limited block；22, limited block.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments:
Embodiment 1: a kind of optical fiber cable folding and unfolding bus cable device, comprising: pedestal 1, left and right support with groove 101
Seat 2,3, rotating electric machine 4 and traveling motor 5, the pedestal 1 be located at 101 two sides of groove surface it is fixed there are two x to line rail 6,
2 lower surface two sides of left support seat are respectively and fixedly provided with the first x to sliding block 7, and 3 lower surface two sides of right support seat are respectively and fixedly provided with the 2nd x to cunning
Block 8, the x are sequentially embedded the first x to sliding block 7, the 2nd x into the respective groove of sliding block 8 to line rail 6；
One, which is located at two x, is installed in the groove 101 of pedestal 1 and is located at left and right to the x between line rail 6 to driving mechanism 9
The lower section of support base 2,3, the x to driving mechanism 9 include x to nut 91, insertion x to the x of nut 91 to lead screw 92, x to main shaft
Seat 93 and x are held to from bearing block 94, the x passes through x to base bearing mechanism 10, x to from Bearning mechanism to 92 both ends of lead screw respectively
For 11 insertion x to main bearing seat 93, x to out of bearing block 94 respective through-hole, the x is fixed on 2 following table of left support seat to nut 91
Face, the traveling motor 5 are installed on positioned at x to the x in the outside of main bearing seat 93 to 92 one end of lead screw；
One cylinder 12 is fixed in left support seat 2 and is located at 2 outboard end of left support seat, the post rod mechanism 13 of the cylinder 12
One end is connected to cylinder 12, another to be installed on the ipsilateral outboard end of right support seat 3 by socket 14, and the post rod mechanism 13 includes
Y shape mandril 15 and connecting rod 16, this 15 one end of Y shape mandril have a slot 151, and described 16 one end of connecting rod is embedded in this slot
It is flexibly connected in 151 and by bolt 152, in 16 other end of the connecting rod insertion socket 14, along the side X in the connecting rod 16
Several location holes 161 are set up；
It is mounted on Bearning mechanism 17 in the left and right support base 2,3 respective upper end through-holes, this left and right support base
2,3 insides are mounted on the chuck piece 18 connecting with Bearning mechanism 17, are equipped on the outside of the Bearning mechanism 17 of left support seat 2
The rotating electric machine 4.
Above-mentioned left and right support base 2,3 is aluminum casting, and the pedestal 1 is ironcasting.
Shaft coupling 19 is provided between the Bearning mechanism 17 and rotating electric machine 4 of above-mentioned left support seat 2.
The chuck piece 18 of above-mentioned left support seat 2 and the opposite surface of the chuck piece 18 of right support seat 3 are fixed with rubber pad 20.
Above-mentioned 18 medial surface of chuck piece is provided with limited block 21.
Embodiment 2: a kind of optical fiber cable folding and unfolding bus cable device, comprising: pedestal 1, left and right support with groove 101
Seat 2,3, rotating electric machine 4 and traveling motor 5, the pedestal 1 be located at 101 two sides of groove surface it is fixed there are two x to line rail 6,
2 lower surface two sides of left support seat are respectively and fixedly provided with the first x to sliding block 7, and 3 lower surface two sides of right support seat are respectively and fixedly provided with the 2nd x to cunning
Block 8, the x are sequentially embedded the first x to sliding block 7, the 2nd x into the respective groove of sliding block 8 to line rail 6；
One, which is located at two x, is installed in the groove 101 of pedestal 1 and is located at left and right to the x between line rail 6 to driving mechanism 9
The lower section of support base 2,3, the x to driving mechanism 9 include x to nut 91, insertion x to the x of nut 91 to lead screw 92, x to main shaft
Seat 93 and x are held to from bearing block 94, the x passes through x to base bearing mechanism 10, x to from Bearning mechanism to 92 both ends of lead screw respectively
For 11 insertion x to main bearing seat 93, x to out of bearing block 94 respective through-hole, the x is fixed on 2 following table of left support seat to nut 91
Face, the traveling motor 5 are installed on positioned at x to the x in the outside of main bearing seat 93 to 92 one end of lead screw；
One cylinder 12 is fixed in left support seat 2 and is located at 2 outboard end of left support seat, the post rod mechanism 13 of the cylinder 12
One end is connected to cylinder 12, another to be installed on the ipsilateral outboard end of right support seat 3 by socket 14, and the post rod mechanism 13 includes
Y shape mandril 15 and connecting rod 16, this 15 one end of Y shape mandril have a slot 151, and described 16 one end of connecting rod is embedded in this slot
It is flexibly connected in 151 and by bolt 152, in 16 other end of the connecting rod insertion socket 14, along the side X in the connecting rod 16
Several location holes 161 are set up；One fixed pin 22 is embedded in socket 14 and the location hole 161 of connecting rod；
It is mounted on Bearning mechanism 17 in the left and right support base 2,3 respective upper end through-holes, this left and right support base
2,3 insides are mounted on the chuck piece 18 connecting with Bearning mechanism 17, are equipped on the outside of the Bearning mechanism 17 of left support seat 2
The rotating electric machine 4.
Shaft coupling 19 is provided between the Bearning mechanism 17 and rotating electric machine 4 of above-mentioned left support seat 2.
The chuck piece 18 of above-mentioned left support seat 2 and the opposite surface of the chuck piece 18 of right support seat 3 are fixed with rubber pad 20.
When using above-mentioned optical fiber cable folding and unfolding bus cable device, can adjust automatically winding displacement commutation position, can solve to need to grasp
The ceaselessly adjustment to winding displacement commutation position on work has subtracted few operational labour by force, has fully achieved full-automatic winding displacement, winding displacement
Quality is high, is dynamically adapted disk away from the fiber reel for realizing plurality of specifications operates, and substantially increases winding winding displacement speed, effect
Rate is high and winding displacement is high-quality.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of optical fiber cable folding and unfolding bus cable device, it is characterised in that: include: pedestal (1) with groove (101), left and right
Support base (2,3), rotating electric machine (4) and traveling motor (5), the surface that the pedestal (1) is located at groove (101) two sides are fixed with
For two x to line rail (6), left support seat (2) lower surface two sides are respectively and fixedly provided with the first x to sliding block (7), right support seat (3) lower surface
Two sides are respectively and fixedly provided with the 2nd x to sliding block (8), and the x is sequentially embedded the first x to sliding block (7), the 2nd x to sliding block to line rail (6)
(8) in respective groove；
One, which is located at two x, is installed in the groove (101) of pedestal (1) and is located to the x between line rail (6) to driving mechanism (9)
Below left and right support base (2,3), the x to driving mechanism (9) include x to nut (91), insertion x to the x of nut (91) to silk
To main bearing seat (93) and x to from bearing block (94), the x passes through x to base bearing to lead screw (92) both ends respectively by thick stick (92), x
Mechanism (10), x are embedded in x to main bearing seat (93), x to from bearing block (94) respectively in through-hole to from Bearning mechanism (11), the x
Left support seat (2) lower surface is fixed on to nut (91), and the traveling motor (5) is installed on positioned at x to main bearing seat (93) outside
The x of side is to lead screw (92) one end；
One cylinder (12) is fixed on left support seat (2) and is located at left support seat (2) outboard end, the mandril machine of the cylinder (12)
Structure (13) one end is connected to cylinder (12), and the other end is installed on the ipsilateral outboard end of right support seat (3) by socket (14), described
Post rod mechanism (13) includes Y shape mandril (15) and connecting rod (16), this Y shape mandril (15) one end has a slot (151), described
Connecting rod (16) one end is embedded in this slot (151) and is flexibly connected by bolt (152), and connecting rod (16) other end is embedding
Enter in socket (14), on the connecting rod (16) in X direction on be provided with several location holes (161)；
Bearning mechanism (17) are mounted in the left and right support base (2,3) respectively upper end through-hole, this left and right support base
(2,3) inside is mounted on the chuck piece (18) connecting with Bearning mechanism (17), is located at the Bearning mechanism (17) of left support seat (2)
Outside is equipped with the rotating electric machine (4).
2. optical fiber cable according to claim 1 folding and unfolding bus cable device, it is characterised in that: the left and right support base (2,
It 3) is aluminum casting, the pedestal (1) is ironcasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121418.2A CN104765116B (en) | 2015-03-19 | 2015-03-19 | Optical fiber cable folding and unfolding bus cable device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510121418.2A CN104765116B (en) | 2015-03-19 | 2015-03-19 | Optical fiber cable folding and unfolding bus cable device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104765116A CN104765116A (en) | 2015-07-08 |
| CN104765116B true CN104765116B (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510121418.2A Active CN104765116B (en) | 2015-03-19 | 2015-03-19 | Optical fiber cable folding and unfolding bus cable device |
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| CN (1) | CN104765116B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600590B (en) * | 2015-11-06 | 2020-05-08 | 江苏亨通智能科技有限公司 | Automatic cable arranging system |
| CN105692333B (en) * | 2016-02-29 | 2018-10-23 | 长飞光纤光缆股份有限公司 | A kind of cable outer sheath bus cable device |
| CN105621150A (en) * | 2016-03-17 | 2016-06-01 | 苏州金钜松机电有限公司 | Self-guiding wire drawer winding reel |
| CN107857162B (en) * | 2017-11-09 | 2023-09-22 | 江苏亨通光电股份有限公司 | Integrated optical fiber cable surface treatment winding system |
| CN108080980A (en) * | 2017-12-14 | 2018-05-29 | 超核阀门有限公司 | A kind of Highgrade integration Automatic-clamping frock |
| CN108861826A (en) * | 2018-08-31 | 2018-11-23 | 安徽高创光电通信技术有限公司 | Shaftless pneumatic pinch gathering and laying wire mechanism |
| CN112739196B (en) * | 2020-12-24 | 2022-03-01 | 苏州利华科技股份有限公司 | Feeder for chip mounter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288031A (en) * | 1990-03-30 | 1994-02-22 | Nokia-Maillerfer Holding S.A. | Arrangement in an automatic cable winding machine |
| CN202594509U (en) * | 2012-06-19 | 2012-12-12 | 成都亨通光通信有限公司 | Optical fiber winding machine |
| CN203965690U (en) * | 2014-07-13 | 2014-11-26 | 合肥通鼎光电科技有限公司 | A kind of novel tinting machine |
| CN104181661A (en) * | 2014-09-15 | 2014-12-03 | 中国电子科技集团公司第八研究所 | Automatic optical fiber coil turn crossing device |
| CN204631299U (en) * | 2015-03-19 | 2015-09-09 | 江苏亨通光电股份有限公司 | Optical fiber cable folding and unfolding bus cable device |
-
2015
- 2015-03-19 CN CN201510121418.2A patent/CN104765116B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5288031A (en) * | 1990-03-30 | 1994-02-22 | Nokia-Maillerfer Holding S.A. | Arrangement in an automatic cable winding machine |
| CN202594509U (en) * | 2012-06-19 | 2012-12-12 | 成都亨通光通信有限公司 | Optical fiber winding machine |
| CN203965690U (en) * | 2014-07-13 | 2014-11-26 | 合肥通鼎光电科技有限公司 | A kind of novel tinting machine |
| CN104181661A (en) * | 2014-09-15 | 2014-12-03 | 中国电子科技集团公司第八研究所 | Automatic optical fiber coil turn crossing device |
| CN204631299U (en) * | 2015-03-19 | 2015-09-09 | 江苏亨通光电股份有限公司 | Optical fiber cable folding and unfolding bus cable device |
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| Publication number | Publication date |
|---|---|
| CN104765116A (en) | 2015-07-08 |
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